In vacuum tubes and gas-filled tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic...

A cathode is the electrode from which a conventional current leaves a polarized electrical device such as a lead-acid battery. This definition can be...

tube. The other type of cathode is a hot cathode, which is heated by electric current passing through a filament. A cold cathode does not necessarily operate...

in 1913. The Coolidge tube, also called a hot cathode tube, uses thermionic emission, where a tungsten cathode is heated to a sufficiently high temperature...

The hot-filament ionization gauge, sometimes called a hot-filament gauge or hot-cathode gauge, is the most widely used low-pressure (vacuum) measuring...

10−8 - 10−1 Pa) Most ion gauges come in two types: hot cathode and cold cathode. In the hot cathode version, an electrically heated filament produces an...

A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a...

Cathode rays or electron beams (e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes...

or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplification and...

but the hot water can itself be utilized. Furthermore, transferred DC torches can be used in a twin-torch setup, where one torch is cathodic and the other...

electrostatic thermionic electron gun is formed from several parts: a hot cathode, which is heated to create a stream of electrons via thermionic emission;...

as hot cathodes. However, cold cathode tubes have cathodes that emit electrons only due to the large voltage between the electrodes. The cathodes will...

ceramics, and military tubes often use glass-lined metal. Both hot cathode and cold cathode type devices are encountered. Hydrogen is used in tubes used...

emit electrons from a hot cathode into an enclosed vacuum and may steer those emitted electrons with applied voltage. The hot cathode can be a metal filament...

with a "cold cathode" generating an electron beam by a corona discharge tube, the other one produces a beam using a "hot cathode". Cold-cathode CL microscopes...

Electron versus electron hole Electron microscope Tafel equation Hot cathode Cold cathode Reversible charge injection limit Wikimedia Commons has media related...

English physicist William Crookes and others around 1869–1875, in which cathode rays, streams of electrons, were discovered. Developed from the earlier...

used in ultrahigh vacuum. They come in two types: hot cathode and cold cathode. In the hot cathode version an electrically heated filament produces an...

Cathodic protection (CP; /kæˈθɒdɪk/ ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell...

hot cathode; a metal mesh grid; and an anode. The grid's voltage is positive relative to the cathode, so that electrons emitted from the hot cathode are...

implementations but all are essentially triode devices. All triodes have a hot cathode electrode heated by a filament, which releases electrons, and a flat...

thyratron. A thyratron consists of a hot cathode, an anode, and one or more control grids between the anode and cathode in an airtight glass or ceramic envelope...

consists of a hot cathode (filaments), grids and anodes (phosphor) encased in a glass envelope under a high vacuum condition. The cathode is made up of...

used a hot cathode that caused an electric current to flow in a vacuum. This idea was quickly applied to X-ray tubes, and hence heated-cathode X-ray tubes...

using a cathode-ray tube as a receiver, the concept of using one as a transmitter was novel. The first cathode-ray tube to use a hot cathode was developed...

efficient rectifier. Hot-cathode, gas discharge tubes such as the thyratron may also achieve similar levels of efficiency but heated cathode filaments are delicate...

Lanthanum oxide and the boride are used in electronic vacuum tubes as hot cathode materials with strong emissivity of electrons. Crystals of LaB 6 are...

In thermionic electron guns, the work function and temperature of the hot cathode are critical parameters in determining the amount of current that can...

One common noise source was a thermally-limited (saturated-emission) hot-cathode vacuum tube diode. These sources could serve as white noise generators...

A Nixie tube (English: /ˈnɪk.siː/ NIK-see), or cold cathode display, is an electronic device used for displaying numerals or other information using glow...